Abstract
We study the asymptotic behaviour of positive solutions of the Cauchy problem for the fast diffusion equation as t approaches the extinction time. We find a continuum of rates of convergence to a self-similar profile. These rates depend explicitly on the spatial decay rates of the initial data.
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Fila, M., Vázquez, J.L., Winkler, M. et al. Rate of Convergence to Barenblatt Profiles for the Fast Diffusion Equation. Arch Rational Mech Anal 204, 599–625 (2012). https://doi.org/10.1007/s00205-011-0486-z
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DOI: https://doi.org/10.1007/s00205-011-0486-z